440 results found
Health topics
… Your Symptoms Overview Allergies are an overreaction of the body's natural defence system … by producing antibodies to fight them. In an allergic reaction , the immune system starts … trouble breathing, nausea, and diarrhea. An allergic reaction may not occur the first time …
Health Features
… Document Spanish Document Vietnamese An allergic reaction occurs when a person's immune system … food allergies are at risk of having a severe allergic reaction called anaphylaxis. It often …
Health topics
… Overview Allergy to dye Allergic reactions to tattoo dye are rare. The various … from cadmium, and the blue from cobalt. Allergic reactions to red dyes occur more …
Health topics
… Overview The reaction that you have to a jellyfish or … delayed for several hours or days. A severe allergic reaction ( anaphylaxis ) may affect … delayed for several hours or days. A severe allergic reaction ( anaphylaxis ) may affect …
HealthLinkBC Files
… 100a What is a severe allergic reaction to a food? An allergic reaction occurs when a person’s …
Health topics
… small doses of substances that you are allergic to ( allergens ) under your skin. … result in fewer or less severe symptoms of allergic rhinitis . Your allergist will use an … you get the shots, in case you have a severe reaction ( anaphylaxis ) to the injected …
Health topics
… up to a few days. A few people have severe reactions to the toxin injected by the insect … and difficulty breathing may occur in an allergic reaction, these symptoms will not … possible to have both a toxic reaction and an allergic reaction at the same time. A toxic …
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… is high, you will be more likely to have an allergic reaction if you are allergic to pollens. Windy, dry weather often …
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… Condition Basics What are allergies (allergic rhinitis)? Allergies happen when you … things can cause this problem. You can be allergic to things such as pollens, dust, or … irritated nose or lungs may make an allergic reaction more likely when you breathe in an …
Health topics
… Overview Experts can classify allergic rhinitis by how often a person has it and how severe it is. Allergic rhinitis is: Intermittent if you have … of allergens a person reacted to and when the reactions occurred. Seasonal allergic rhinitis …
